Question

Oceanside Bike Rental Shop charges a 18 dollar fixed fee plus 7 dollars an hour for renting bike. Jason paid 81 dollars to rent a bike. How many hours did he pay to have the bike check out?

Answer 1

Answer:

9 hours.

Step-by-step explanation:

Let x represent number of hours.

We have been given that Oceanside Bike Rental Shop charges a 18 dollar fixed fee plus 7 dollars an hour for renting bike.

The cost of renting bike for x hours would be $7x$.

The total cost of renting bike for x hours would be cost of x hours plus fixed charges that $7x+18$.

We are told that Jason paid 81 dollars to rent a bike. To find the number of hours, we will equate total cost of renting bike for x hours by 81 as:

$7x+18=81$

Let us solve for x.

$7x+18-18=81-18$

$7x=63$

$\frac{7x}{7}=\frac{63}{7}$

$x=9$

Therefore, Jason paid for 9 hours to have the bike check out.